Crusher



March s, 1938.

H. H. RUMPEL v CRUSHER Filed Feb. 5, 1936 meat:

I Pa nt 1338 Eb? T T P NT-"QF CE v 2,1 1 0376' l I i g 'causrma Harvey H. ltumpel, Milwaukee. Wis" assignor to Smith Engineering Works, Milwaukea w ig a corporation of Wisconsin g g [Application February 5, 193a, sw rm. 62,464

1 Claim. (c1. sa-

.The present invention relates generally to improvements inthe art of reducing hard substances such as rock and ore, and relates-more specifically to variousimprovements in the con- 5 struction and'operation ofgyratory crushers especially adapted to be utilized as reduction crushera for producing relatively coarse granular productofunif'ormsize.. a I An object of the invention is to provide an 9 improved crusher whichis simple and compact in construction, and which has enormous capacity and is'highly emcien't in operation.- 3 1 .Another object of the invention is'to provide. a new and useful gyratory crusher assembly,.of 5 durable structurewhereiri the'various parts are eflectivelyprotected against loosening, breakage, and 'entry of gritty substances.

A further object of the invention is the-pro visionof simple andefllcient means for preven'ting breakage of main crusher parts in case pieces 10! uncrushable substancesofrelatively largesize are accidentally. admitted to the-crushing chamberL . Still another object ofthe invention istc'prc- '25 vide improved 'instrumentalities. for protecting theadiusting mechanisms and bearing of a crusher against ingress of dust and lack of lubricants;

additional specific obiectlof'the. invention is. 'to' provide improvedconcave j supporting and adjusting structure for gyratory crushers or the like, and also improved head supporting and at taching mechanism. i

Another object of the invention is the provision c'f'an improved crusher driving eccentric, the. internal and external'bearing surfaces of which v will be. automatically and abundantly lubricated during normal operation of the machine.

; A further object of" the invention is to r'ovide an improved gyratory crusher, the-bearings .of

which are properly protected jand lubricated .at all times, and which canbe manufactured and operated atminimumcost; j g

Still another object of th invention is the pro vlsionof improvedhead a'nd concave'liner attachfl are simple in construction and efIectivein-use. y These and other objects andadvantagesoi' the invention will beappare'nt from thefollowing detaileddescrip'tion.

A clear 'conceptioncf embodiments of theseveral features constituting the present improve a ment, and-of the mode of constructing and of operating ,gyratorycrushers, built in accordance ,:-with the improvement, may be had by referring w ne drawingaccompanyingand forming a part I and having adownwardlyjand outwardly liarprovided Withffi-II annular projection whlch is "tapered for direct coa'ctionwith the 'lower' end v of the head l. A retainer nut i5 has screw thread shaft'i, and coacts directly with the upper end of this specificationin are identified by suitable reference characters, Fig. 1 is a central vertical section through a gyratory crusherembodying the: improvements;

, Fig. 2 is a fragmentary transverse horizontal 6 section through the machine, take n along the line -3. 9 3 s,- a d F1843 mther'simflar uan terrier. j the line H-of F13, 1 11 g unnecessarilyrestrict the scopebysuch p n l5v embodiment, sincesome ofthelimprovedafeatureslj are obviously'more generally..fapplicable.-i f

I ,Referring'tc thelidrawingfthe vertical gym-- tory crusher shown therein comprises in general a normally gyratableinner crushing member or 20 head carried by the upper end of a .WJQIIEH, land having a, frustro-ccnical protecting mantle;

b if an annular normally-stationary outer crushf.

in'g. member or concave 'Tsurroun'ding the head.

ingremovable annular liner 0 .surroimdingland overlying the head mantle 0 to form an annular,

downwardly extending and outwardly spreading crushingchamber 0;.astationary main frame,

I] constituting a firm support for the concave I and liner 8; andla, rotary eccentric ll journaled s .ln thejmairiframe llfand' in a bearing member I 2 secured to this frame, this eccentric coacting with the main span I to mace thefheadl and mantle' .I relative to the concave 1 and liner I during normal operation of the'cmsher. g

The head 4 maybe of conical formation as" shown, or it" may be of'substantially semi-spheri-' cal form, and has a relatively rough outer sur 7 face and a central tapered bore' snugl'y fitting the'i40 upper'taper'ed end I 3 of the shaft 5. The upper extremity of the shaft 5 is provided with an inte gral threaded portion ll of reduceddiameter projectingupwa'rdly beyond the head 4, and the frustro-conical mantle t has'its lower interior coaction with the reduced portion ll of the main" 50 of the mantle Bbut is spaced slightly from the head 4. The nut "has atop plate ""welded" thereto after threading of the nut, and verticaldiametrically.opposite through holes v|"| adapted to receive a spanner wrench during '-ap-- 55 M MW M. w HUM Mai: Em

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' g1iis' ashramashlarintestate and will "rotate the pump 1 begduring ormal thereover, and the I T test ng .911 delivered from 't h'e groov w nih i h efi i is runnlha rllh ll s tbe ing, 11], isgo'f, usual fconstructiomg'prefe bl enticedhe ush whe eb su i -a a 'n antl ldel verabl' ofItli'e; eccentric ;l'l a lrig outwardly directedggropyefsfor 'c ond iqn ithe. e c n c A, .t k. s. t d assl fiw provide an a 61 1 vnea nei e pb a ss. a ma man. i ms t groovejll wurpermitm' undantquanjtit d ive ed f bm e fire ms! he maximums mit lli f fisl, cape.freely jfrom thetop of th roov. In:v gearfehamber 50.1 The inner Tc'centricQb ar 551s p'roviifled[withv summar se: groove 3 tendmgrr 'thebottom,

the top of theeccen:

er endllwlthi'the gearlch'amber 'in suc 4s] aridtfthegpinion 4s rooves m a s headbearing "surface ,jl's engine? ga es 1 115 X arrow "s'ide' of'the'lower 'por n 63 formed at the off-set between the surfaces; 20,serves; as,- an oil-thrower for slinging excess oil the foregoing detailedvdescription, aresume of the crushinghead. The concave I i's-normally openings Nlinto thegear chamber 50. A flexible frorh'the surface 19 against the inner annular: surface of ."the supporting member l2 from whence this oil is drained by gravity through-g;

sealing ring is interposed between the, member oil delivered from the lip 63 maybe supplied to this ring 65 by capillary attraction through wicks 86. The oil from within the/chamber 50, after roller bearings 53, is discharged through an' opening 61 to thesource of supply for the pump 59; v

Although the normal operation of the improved gyratory crusher should-be apparent from i such operation may be desirable.

Thematerial to be reduced is admitted-into the i hopper wall 23 and drops by gravity directly into the annular crushing chamber 9 withoutneces sitating the use of feed controls associated with fixed relative to the main frame Land the'head l is being gyrated relative to the concave by therevolving eccentric II, the head I being free to rotate however about the'central axis of the main shaft 5 and relative to the eccentric I L the pieces ofmaterial advance'by gravity along. the downwardly and outwardly flaring crushing chamber 9, they areintermittently crushed be-;

tween the :rapidlyapproaching and receding crushing surfaces of the mantle 6 and liner 8, and the resulting fragments constantlygravitate toward the lower dischargeopening of the crushing zone, being further reduced during such ad-.

'vancemen't until they are of asize sufficiently 7 small to pass through the portion of the discharge opening having minimum width. Due to the peculiar formation and relative disposition of the crushingsurfaces of the head mantle and concave liner, the pieces of material will be subjected to several successive crushing. impulses of about the same intensity and magnitude just prior to final discharge thereof, thereby minimizing dis 4n willoccur onlyin't-he-event that concave supporting ring 25 to" "move" away from 'structionto pass. 9 Suchbreakage ofthewashers stresses. become excessivelyfgreat'.

The pump 59. which is drivendir oiling or the sealing ring is, and; the excess, on passing through the opening 64 together" with that delivered from the' groove; 62, will insure:

abundant lubrication of the gear u and pinion the crushing;

} 'ctly fromthe eccentric will be constantly operated during nor-1 mal operation of the crusher, as previously eic fplained, and, oil will be constantly supplier-1n" abundant quantities-to thefthrust bearing ll and to the large opening =58. I The oil delivered, from the thrust bearingflll will flowthroug'hathe groove fill and will lubricate the lower'outer bearing 43, Due-ito the faictfithahtheupper a end oftbe groove ill is closed or restricted, the y 'oilsurrounding the thrust bearing f" will be" the crushing stresses become excessive; one}. or j more of the safety washers Illmaybreak; Break- {,ageof one'or more ofthesewashers will allow the] -to flow thmugh'fthe groove Stand thereby z'ef- 1 oil flowing from the open top of theflgroove 16! will pass along the surface, ,I9'-andthrough delivered overthe wicks 86 will insure abundant vl9. Ali of' the'bearingglarethus automatically and effectively-c lubricated, ,as well asbeing .pro- I I teeted against ingressof dust and other forei gn matter.v

The improved head" mantle attachment comprising the' nut 15 of'special' constructionv co acting withthe fllling' metal is, providesarlgid a and -du'rable fastening -'for normally securing I 

